1. Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine
2. Division of Laboratory Medicine, Sapporo Medical University Hospital
3. Department of Neurosurgery, Sapporo Medical University School of Medicine
4. Department of Cellular Physiology and Signal Transduction, Sapporo Medical University School of Medicine
5. Department of Cardiovascular Surgery, Sapporo Medical University School of Medicine
6. Department of Infection Control and Laboratory Medicine, Sapporo Medical University School of Medicine